"Reiko Asakawa is researching into a 'Cursed Video', and interviewing teenagers about it. When her niece Tomoko dies of 'sudden heart failure' with an unnaturally horrified expression on her face, Reiko investigates. She finds out that some of Tomoko's friends, who had been on a holiday with Tomoko the week before, had died on exactly the same night at the exact same time in the exact same way. Reiko goes to the cabin where the teens had stayed and...